Question

7. Ashok is studying in gth class in Govt School, Chhatarpur. Once he was at his home and was doing his geometry homework. He was trying to measure 2C using the protractor, but protractor was old, and its number were erased and the lines on the protractor were not clearly visible. Now without using protractor how Ashok will find 2C from the given figure if AB//DC. D c 112​

Answer 1

EXPLANATION:-

The sum of angle b and angle c is 180  

                    or

∠B+∠C=180    

∠B=112

Let's put the value of angles B in the formula

112+∠C=180

∠c=180-112

∠C=   68

Hence the value of ∠C is 68°